Utility knife



FIG. 1 is a perspective view of a utility knife showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is bottom plan view thereof;

FIG. 7 is a left side elevation view thereof;

FIG. 8 is a right side elevation view thereof in a partially folded position; and,

FIG. 9 is a side view showing the knife in a fully folded position.

The broken line portions of the disclosure are included for the purpose of illustrating environmental structure that form no part of the claimed design. 

The ornamental design of a utility knife, as shown and described. 